package com.ny.demo524;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Scanner;

public class LoginSql {
    public static  void  main(String[] args) throws SQLException
    {
        Connection con = SqlConnection.getCon();
        Scanner scanner = new Scanner(System.in);
        System.out.println("请输入用户名");
        String username = scanner.next();
        System.out.println("请输入密码");
        String password = scanner.next();
        String sql = "select * from users where username = ? and password = ?";
        PreparedStatement preparedStatement = con.prepareStatement(sql);
        preparedStatement.setString (1, username);
        preparedStatement.setString (2, password);

        ResultSet resultSet = preparedStatement.executeQuery();
        if(resultSet.next()){
            String name  = resultSet.getString("username");
            String pwd  = resultSet.getString("password");
            System.out.println("用户名："+name);
            System.out.println("密码："+pwd);
            System.out.println("登录成功");

        }else{
            System.out.println("登录失败");
        }

    }
}
